Bapt were;
Mary 1800
Alice 1801
James 1803
Ann 1806
These are from Crossmoor Baptist Chapel, Inskip
Earlier baptisms at St. Michael's on Wyre on Lancashire Online Parish Clerks:
Peggy 1788, William 1791, Ellen 1793, father of all was John, abode Inskip.
Baptism Thomas 1789, father James, abode Inskip.
Peggy (Margaret) and Thomas were also in Crossmoor Baptist Chapel, Inskip.
Plus 2 earlier children of John & Sarah; 1781 William, 1786 John.
If all those children from William 1781 to Ann 1806 belonged to the same John & Sarah, then the marriage of John Crook & Sarah Miller 1787 was too early. Maybe there were 2 couples called John & Sarah Crook in Inskip. There's a gap in births to John & Sarah in 1790's until Mary 1800. Perhaps they moved and Margaret was born elsewhere, or maybe John volunteered or was called up for the French wars.
I'm not sure if there was 1 Thomas or 2 born in 1789. His birthday in Crossmoor register is 1st Dec. and his parents were John & Sarah. Birthday of Thomas in St. Michael's register is 1st Nov. and his father was James.
Other couples with children in Crossmoor baptism register were Thomas & Ellen, William & Alice, James & Nancy, Thomas & Elizabeth, James & Ann.
Baptisms in Crossmoor register have a note beside them saying they were registered in 1837.
Monumental inscriptions for Crossmoor graveyard from 1817 are in Lancashire Archives.